One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,12)(4,8)(5,10)(6,15)(7,11)(9,14)(13,16)(18,22,24,27)(23,29,30,32)(1,3,6,4,7,14,5,13)(2,8,10,12,11,16,15,9)(17,18,20,27,21,24,28,22)(19,23,26,32,25,30,31,29)(1,4,6,14,7,13,5,3)(2,9,10,8,11,12,15,16)(17,19)(18,23)(20,26)(21,25)(22,29)(24,30)(27,32)(28,31)(1,5,7,6)(2,10,11,15)(3,13,14,4)(8,12,16,9)(19,25)(23,30)(26,31)(29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.